<!--
  因tabs属性并不包含于options属性之中，故只能跟其他options属性之内的属性值合并设置，此处选择与customClass合并！！
-->

<template>
  <div>
    <el-form-item :label="i18nt('designer.setting.customClass')">
      <el-select
        v-model="optionModel.customClass"
        multiple
        filterable
        allow-create
        default-first-option
      >
        <el-option
          v-for="(item, idx) in cssClassList"
          :key="idx"
          :label="item"
          :value="item"
        />
      </el-select>
    </el-form-item>
    <el-form-item :label="i18nt('designer.setting.tabPaneSetting')" />
    <el-form-item label-width="0" class="panes-setting">
      <draggable
        tag="ul"
        :list="selectedWidget.tabs"
        item-key="id"
        v-bind="{
          group: 'panesGroup',
          ghostClass: 'ghost',
          handle: '.drag-option'
        }"
      >
        <template #item="{ element: tpItem, index: tpIdx }">
          <li class="col-item">
            <!-- span style="margin-right: 12px">{{tpIdx + 1}}</span -->
            <el-checkbox
              v-model="tpItem.options.active"
              disabled
              @change="evt => onTabPaneActiveChange(evt, tpItem)"
              style="margin-right: 8px"
              >{{ i18nt("designer.setting.paneActive") }}</el-checkbox
            >
            <el-input
              link
              type="primary"
              v-model="tpItem.options.label"
              style="width: 155px"
            />
            <i class="iconfont icon-drag drag-option" />
            <el-button
              circle
              plain
              size="small"
              type="danger"
              @click="deleteTabPane(selectedWidget, tpIdx)"
              icon="el-icon-minus"
              class="col-delete-button"
            />
          </li>
        </template>
      </draggable>

      <div>
        <el-button link type="primary" @click="addTabPane(selectedWidget)">{{
          i18nt("designer.setting.addTabPane")
        }}</el-button>
      </div>
    </el-form-item>
  </div>
</template>

<script>
import i18n from "@/utils/i18n";
//import Draggable from 'vuedraggable'
import { deepClone } from "@/utils/util";

export default {
  name: "tab-customClass-editor",
  componentName: "PropertyEditor",
  mixins: [i18n],
  components: {
    //Draggable,
  },
  props: {
    designer: Object,
    selectedWidget: Object,
    optionModel: Object
  },
  data() {
    return {
      cssClassList: []
    };
  },
  created() {
    this.cssClassList = deepClone(this.designer.getCssClassList());
    //监听表单css代码改动事件并重新加载！
    this.designer.handleEvent("form-css-updated", cssClassList => {
      this.cssClassList = cssClassList;
    });
  },
  methods: {
    onTabPaneActiveChange(_evt, _tpItem) {
      //TODO: !!!
    },

    addTabPane(curTabs) {
      this.designer.addTabPaneOfTabs(curTabs);
      this.designer.emitHistoryChange();
    },

    deleteTabPane(curTabs, tpIdx) {
      if (curTabs.tabs.length === 1) {
        this.$message.info(this.i18nt("designer.hint.lastPaneCannotBeDeleted"));
        return;
      }

      this.designer.deleteTabPaneOfTabs(curTabs, tpIdx);
      this.designer.emitHistoryChange();
    }
  }
};
</script>

<style lang="scss" scoped>
li.col-item {
  list-style: none;

  span.col-span-title {
    display: inline-block;
    font-size: 13px;
    width: 120px;
  }

  .col-delete-button {
    margin-left: 6px;
  }
}

.panes-setting {
  ul {
    padding-inline-start: 0;
    padding-left: 0; /* 重置IE11默认样式 */
    margin: 0;
  }

  .drag-option {
    cursor: move;
  }

  li.ghost {
    background: #fff;
    border: 2px dotted $--color-primary;
  }
}
</style>
